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<a name="1" href="#1">1</a>   <strong class="jxr_keyword">package</strong> com.googlecode.transloader;
<a name="2" href="#2">2</a>   
<a name="3" href="#3">3</a>   <strong class="jxr_keyword">import</strong> java.util.Arrays;
<a name="4" href="#4">4</a>   <strong class="jxr_keyword">import</strong> java.util.List;
<a name="5" href="#5">5</a>   
<a name="6" href="#6">6</a>   <em class="jxr_javadoccomment">/**</em>
<a name="7" href="#7">7</a>   <em class="jxr_javadoccomment"> * Static utility for making assertions.</em>
<a name="8" href="#8">8</a>   <em class="jxr_javadoccomment"> * </em>
<a name="9" href="#9">9</a>   <em class="jxr_javadoccomment"> * @author Jeremy Wales</em>
<a name="10" href="#10">10</a>  <em class="jxr_javadoccomment"> */</em>
<a name="11" href="#11">11</a>  <strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">final</strong> <strong class="jxr_keyword">class</strong> <a href="../../../com/googlecode/transloader/Assert.html">Assert</a> {
<a name="12" href="#12">12</a>  
<a name="13" href="#13">13</a>  	<strong class="jxr_keyword">private</strong> <a href="../../../com/googlecode/transloader/Assert.html">Assert</a>() {
<a name="14" href="#14">14</a>  	}
<a name="15" href="#15">15</a>  
<a name="16" href="#16">16</a>  	<em class="jxr_javadoccomment">/**</em>
<a name="17" href="#17">17</a>  <em class="jxr_javadoccomment">	 * Asserts that the given parameter is not &lt;code&gt;null&lt;/code&gt;.</em>
<a name="18" href="#18">18</a>  <em class="jxr_javadoccomment">	 * </em>
<a name="19" href="#19">19</a>  <em class="jxr_javadoccomment">	 * @param parameter the parameter to check</em>
<a name="20" href="#20">20</a>  <em class="jxr_javadoccomment">	 * @throws IllegalArgumentException if &lt;code&gt;parameter&lt;/code&gt; is &lt;code&gt;null&lt;/code&gt;</em>
<a name="21" href="#21">21</a>  <em class="jxr_javadoccomment">	 * @return the given &lt;code&gt;parameter&lt;/code&gt; (if an &lt;code&gt;Exception&lt;/code&gt; was not already thrown because it was</em>
<a name="22" href="#22">22</a>  <em class="jxr_javadoccomment">	 *         &lt;code&gt;null&lt;/code&gt;)</em>
<a name="23" href="#23">23</a>  <em class="jxr_javadoccomment">	 */</em>
<a name="24" href="#24">24</a>  	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> Object isNotNull(Object parameter) {
<a name="25" href="#25">25</a>  		areNotNull(<strong class="jxr_keyword">new</strong> Object[] {parameter});
<a name="26" href="#26">26</a>  		<strong class="jxr_keyword">return</strong> parameter;
<a name="27" href="#27">27</a>  	}
<a name="28" href="#28">28</a>  
<a name="29" href="#29">29</a>  	<em class="jxr_javadoccomment">/**</em>
<a name="30" href="#30">30</a>  <em class="jxr_javadoccomment">	 * Asserts that the given parameters are not &lt;code&gt;null&lt;/code&gt;.</em>
<a name="31" href="#31">31</a>  <em class="jxr_javadoccomment">	 * </em>
<a name="32" href="#32">32</a>  <em class="jxr_javadoccomment">	 * @param parameter1 the first parameter to check</em>
<a name="33" href="#33">33</a>  <em class="jxr_javadoccomment">	 * @param parameter2 the second parameter to check</em>
<a name="34" href="#34">34</a>  <em class="jxr_javadoccomment">	 * @throws IllegalArgumentException if either &lt;code&gt;parameter1&lt;/code&gt; or &lt;code&gt;parameter2&lt;/code&gt; is</em>
<a name="35" href="#35">35</a>  <em class="jxr_javadoccomment">	 *             &lt;code&gt;null&lt;/code&gt;</em>
<a name="36" href="#36">36</a>  <em class="jxr_javadoccomment">	 */</em>
<a name="37" href="#37">37</a>  	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> areNotNull(Object parameter1, Object parameter2) {
<a name="38" href="#38">38</a>  		areNotNull(<strong class="jxr_keyword">new</strong> Object[] {parameter1, parameter2});
<a name="39" href="#39">39</a>  	}
<a name="40" href="#40">40</a>  
<a name="41" href="#41">41</a>  	<em class="jxr_javadoccomment">/**</em>
<a name="42" href="#42">42</a>  <em class="jxr_javadoccomment">	 * Asserts that the given parameters are not &lt;code&gt;null&lt;/code&gt;.</em>
<a name="43" href="#43">43</a>  <em class="jxr_javadoccomment">	 * </em>
<a name="44" href="#44">44</a>  <em class="jxr_javadoccomment">	 * @param parameter1 the first parameter to check</em>
<a name="45" href="#45">45</a>  <em class="jxr_javadoccomment">	 * @param parameter2 the second parameter to check</em>
<a name="46" href="#46">46</a>  <em class="jxr_javadoccomment">	 * @param parameter3 the third parameter to check</em>
<a name="47" href="#47">47</a>  <em class="jxr_javadoccomment">	 * @throws IllegalArgumentException if either &lt;code&gt;parameter1&lt;/code&gt;, &lt;code&gt;parameter2&lt;/code&gt; or</em>
<a name="48" href="#48">48</a>  <em class="jxr_javadoccomment">	 *             &lt;code&gt;parameter3&lt;/code&gt; is &lt;code&gt;null&lt;/code&gt;</em>
<a name="49" href="#49">49</a>  <em class="jxr_javadoccomment">	 */</em>
<a name="50" href="#50">50</a>  	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> areNotNull(Object parameter1, Object parameter2, Object parameter3) {
<a name="51" href="#51">51</a>  		areNotNull(<strong class="jxr_keyword">new</strong> Object[] {parameter1, parameter2, parameter3});
<a name="52" href="#52">52</a>  	}
<a name="53" href="#53">53</a>  
<a name="54" href="#54">54</a>  	<em class="jxr_javadoccomment">/**</em>
<a name="55" href="#55">55</a>  <em class="jxr_javadoccomment">	 * Asserts that the given parameters are not &lt;code&gt;null&lt;/code&gt;.</em>
<a name="56" href="#56">56</a>  <em class="jxr_javadoccomment">	 * </em>
<a name="57" href="#57">57</a>  <em class="jxr_javadoccomment">	 * @param parameters the parameters to check</em>
<a name="58" href="#58">58</a>  <em class="jxr_javadoccomment">	 * @throws IllegalArgumentException if any elements of &lt;code&gt;parameters&lt;/code&gt; are &lt;code&gt;null&lt;/code&gt;</em>
<a name="59" href="#59">59</a>  <em class="jxr_javadoccomment">	 */</em>
<a name="60" href="#60">60</a>  	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> areNotNull(Object[] parameters) {
<a name="61" href="#61">61</a>  		<strong class="jxr_keyword">if</strong> (parameters == <strong class="jxr_keyword">null</strong>) <strong class="jxr_keyword">throw</strong> newNullParameterException(parameters);
<a name="62" href="#62">62</a>  		List parameterList = Arrays.asList(parameters);
<a name="63" href="#63">63</a>  		<strong class="jxr_keyword">if</strong> (parameterList.contains(<strong class="jxr_keyword">null</strong>)) <strong class="jxr_keyword">throw</strong> newNullParameterException(parameterList);
<a name="64" href="#64">64</a>  	}
<a name="65" href="#65">65</a>  
<a name="66" href="#66">66</a>  	<strong class="jxr_keyword">private</strong> <strong class="jxr_keyword">static</strong> IllegalArgumentException newNullParameterException(Object parameters) {
<a name="67" href="#67">67</a>  		<strong class="jxr_keyword">return</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(<span class="jxr_string">"Expecting no null parameters but received "</span> + parameters + <span class="jxr_string">"."</span>);
<a name="68" href="#68">68</a>  	}
<a name="69" href="#69">69</a>  
<a name="70" href="#70">70</a>  	<em class="jxr_javadoccomment">/**</em>
<a name="71" href="#71">71</a>  <em class="jxr_javadoccomment">	 * Asserts that the given arrays are of the same length.</em>
<a name="72" href="#72">72</a>  <em class="jxr_javadoccomment">	 * </em>
<a name="73" href="#73">73</a>  <em class="jxr_javadoccomment">	 * @param array1 the first array in the comparison</em>
<a name="74" href="#74">74</a>  <em class="jxr_javadoccomment">	 * @param array2 the second array in the comparison</em>
<a name="75" href="#75">75</a>  <em class="jxr_javadoccomment">	 * @throws IllegalArgumentException if the length of &lt;code&gt;array1&lt;/code&gt; is not equal to the length of</em>
<a name="76" href="#76">76</a>  <em class="jxr_javadoccomment">	 *             &lt;code&gt;array2&lt;/code&gt;</em>
<a name="77" href="#77">77</a>  <em class="jxr_javadoccomment">	 */</em>
<a name="78" href="#78">78</a>  	<strong class="jxr_keyword">public</strong> <strong class="jxr_keyword">static</strong> <strong class="jxr_keyword">void</strong> areSameLength(Object[] array1, Object[] array2) {
<a name="79" href="#79">79</a>  		<strong class="jxr_keyword">if</strong> (array1.length != array2.length)
<a name="80" href="#80">80</a>  			<strong class="jxr_keyword">throw</strong> <strong class="jxr_keyword">new</strong> IllegalArgumentException(
<a name="81" href="#81">81</a>  					<span class="jxr_string">"Expecting equal length arrays but received "</span> + Arrays.asList(array1) + <span class="jxr_string">" and "</span> + Arrays.asList(array2) + <span class="jxr_string">"."</span>);
<a name="82" href="#82">82</a>  	}
<a name="83" href="#83">83</a>  }
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